解决idea导入ssm项目启动tomcat报错404的问题

用idea写ssm项目，基于之前一直在用spring boot 对于idea如何运行ssm花费了一番功夫

启动Tom act一直在报404 我搜了网上各种解决办法都不行，花费一天多的时间解决不了

就是在pom中添加下面代码

<build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.5.1</version>
        <configuration>
          <source>1.8</source>
          <target>1.8</target>
        </configuration>
      </plugin>
    </plugins>
    <resources>
      <resource>
        <directory>src/main/resources</directory>
        <includes>
          <include>**/*.properties</include>
          <include>**/*. </include>
          <include>**/*.ini</include>
        </includes>
        <filtering>false</filtering>
      </resource>
      <resource>
        <directory>src/main/java</directory>
        <includes>
          <include>**/*.properties</include>
          <include>**/*. </include>
        </includes>
        <filtering>false</filtering>
      </resource>
    </resources>
  </build>

idea不配置各种文件，自己识别不了需要给指定

配置tomcat以及jdk

首先配置jdk